Follicular development in Corriedale lambs from birth to weaning

Abstract

Histological skin studies obtained by trephine, since birth to weaning, had been done in Corriedale lambs. Studies of follicular curvature radius, depth and density and secondary/primary follicle ratio have been made in vertical and horizontal sections. The follicle depth increases since birth (1.40 mm) to 91 days ofage (2.38 mm); this is the highest value in the animal's life. The follicular relationship secondary/primary was established in horizontal skin sections, finding a linear increment since birth (2.14) to 140 days old (7.17).